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package com.aptech.mBean.util;

/**
 *
 * @author Winner
 */
import java.util.List;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.model.SelectItem;

public class JsfUtil {

    public static SelectItem[] getSelectItems(List<?> entities, boolean selectOne) {
        int size;
        if (entities == null) {
            size = 1;
        } else {
            size = selectOne ? entities.size() + 1 : entities.size();
        }
        SelectItem[] items = new SelectItem[size];

        int i = 0;
        if (selectOne) {
            items[0] = new SelectItem("", "Select One");
            i++;
        }
        if (entities != null) {
            for (Object x : entities) {
                items[i++] = new SelectItem(x, x.toString());
            }
        }
        return items;
    }

    public static SelectItem[] getSelectItemsHour(List<?> entities, boolean selectOne) {
        int size;
        if (entities == null) {
            size = 1;
        } else {
            size = selectOne ? entities.size() + 1 : entities.size();
        }
        SelectItem[] items = new SelectItem[size];

        int i = 0;
        if (selectOne) {
            items[0] = new SelectItem("", "Select Hour");
            i++;
        }
        if (entities != null) {
            for (Object x : entities) {
                items[i++] = new SelectItem(x, x.toString() + ":00h");
            }
        }
        return items;
    }

    public static void addErrorMessage(Exception ex, String defaultMsg) {
        String msg = ex.getLocalizedMessage();
        if (msg != null && msg.length() > 0) {
            addErrorMessage(msg);
        } else {
            addErrorMessage(defaultMsg);
        }
    }

    public static void addErrorMessages(List<String> messages) {
        for (String message : messages) {
            addErrorMessage(message);
        }
    }

    public static void addErrorMessage(String msg) {
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_ERROR, msg, msg);
        FacesContext.getCurrentInstance().addMessage(null, facesMsg);
    }

    public static void addSuccessMessage(String msg) {
        FacesMessage facesMsg = new FacesMessage(FacesMessage.SEVERITY_INFO, msg, msg);
        FacesContext.getCurrentInstance().addMessage("successInfo", facesMsg);
    }

    public static String getRequestParameter(String key) {
        return FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get(key);
    }

    public static Object getObjectFromRequestParameter(String requestParameterName, Converter converter, UIComponent component) {
        String theId = JsfUtil.getRequestParameter(requestParameterName);
        return converter.getAsObject(FacesContext.getCurrentInstance(), component, theId);
    }

    public static Object putSession(String key, Object value) {
        return FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put(key, value);
    }

    public static Object logoutSession(String key) {
        return FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove(key);
    }
}
